I have some questions about Catherine and Henry's meeting in ch. 3:

* Could gentlemen ask the Master of Ceremonies to introduce them to particular ladies?

* Did the Master of Ceremonies keep track of ladies in need of dancing partners and match them up with gentlemen who hadn't chosen a partner yet?

We aren't given much information about the introduction, so I've wondered the following:

* Was Mr. King simply doing his job -- rounding up unattached ladies and gentlemen and putting them in pairs? (reminiscent of an American junior high school mixer)

* Did the Allens + Catherine present themselves to Mr. King and suggest (or he could perceive) that Catherine needed a partner? Mrs. Allen hasn't been very helpful thus far, but maybe Mr. Allen spoke with Mr. King.

* Did Henry see Catherine (maybe he was one of the anonymous gentlemen admirers from the previous evening) and request an introduction?